Unlock instant, AI-driven research and patent intelligence for your innovation.

A Calculation Method for Predicting the Ultimate Bearing Capacity of Anchor Bolt Based on Mathematical Model

A technology of ultimate bearing capacity and mathematical models, which is applied in calculation, electrical digital data processing, special data processing applications, etc., can solve problems such as engineering deviations, and achieve high accuracy and stability

Inactive Publication Date: 2018-01-09
NANHUA UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to provide a calculation method for predicting the ultimate bearing capacity of the anchor based on a mathematical model in order to solve the problem that the prediction results of the ultimate bearing capacity of the anchor often have a certain deviation from the engineering practice

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Calculation Method for Predicting the Ultimate Bearing Capacity of Anchor Bolt Based on Mathematical Model
  • A Calculation Method for Predicting the Ultimate Bearing Capacity of Anchor Bolt Based on Mathematical Model
  • A Calculation Method for Predicting the Ultimate Bearing Capacity of Anchor Bolt Based on Mathematical Model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A calculation method for predicting the ultimate bearing capacity of anchor bolts based on a mathematical model, such as figure 1 It can be seen that the construction method comprises the following steps:

[0028] Step 1: Establish the shear slip model of the anchorage interface: establish the exponential model of the relationship between the shear stress of the full-length bonded anchor and the displacement of the anchor, and determine the expression of the shear stress;

[0029] Assumption: τ (0) =m (0) and satisfy m (+∞) =τ (max) The shear stress-displacement relationship curve obtained is an exponential function, and now the shear stress-displacement curve under the pull-out action of the bolt is simplified as figure 2 The shear stress-displacement curve diagram of the present invention shown:

[0030] Depend on figure 2 The following expression can be obtained:

[0031]

[0032] τ x =τ p (m x >m p ) (2)

[0033] In the formula: a is the attenuatio...

Embodiment 2

[0090] Embodiment 2 uses the mathematical model of the present invention to predict the ultimate bearing capacity of the bolt

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to the technical field of methods for detecting the bearing capacity of anchor rods in bolt anchorage, and in particular to a calculation method for predicting the ultimate bearing capacity of anchor rods based on mathematical models, which includes the following steps: Step 1: Establishing the shear slip of the anchorage interface Model; Step 2: Determine the ultimate pull-out load of the bolt; Step 3: Determine the influence coefficient ψ of the anchorage length on the bond strength, determine the influence coefficient K1 of the crack spacing of the rock mass on the bond strength, and determine the crack opening of the rock mass Influence coefficient K2 of bonding strength with filler; Step 4: Determine the mathematical model for predicting the ultimate bearing capacity of the bolt. The invention corrects the formula for calculating the bearing capacity of the anchor through the analysis and discussion of factors affecting the bearing capacity of the actual engineering anchor, and obtains a calculation model for the bearing capacity of the anchor under comprehensive conditions. The ultimate bearing capacity of the bolt can be accurately predicted, and the accuracy and stability are high, and it can be widely used in practical engineering.

Description

technical field [0001] The invention relates to the technical field of a method for detecting the bearing capacity of an anchor during anchorage, and in particular to a calculation method for predicting the ultimate bearing capacity of an anchor based on a mathematical model. Background technique [0002] Bolt anchoring technology has the advantages of low cost, simple processing, convenient installation, and fast construction speed. It is playing an increasingly important role in geotechnical engineering, but the accurate determination of its ultimate bearing capacity has always been a major problem. The actual pull-out resistance of anchor bolts in my country is mostly obtained through on-site pull-out experiments, and pull-out experiments are often destructive, and the number of pull-outs is also limited. It is necessary to find a reasonable model to calculate and predict its ultimate resistance. pull force. Many scholars have proposed the calculation theory of bolt beari...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 孙冰曾晟黄振江付志国梁展平马艾阳肖佳辉
Owner NANHUA UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com